Bottle stopper



.-A. Y. s. ALBUM.

BOTTLE STOPPER."

APPLICATION HLED MAY 4, 1921.

lAm wn 'Patemedlune 19220.

III lllllllllllllll I lllllli MIVENTOF V #00 PM y 5. 5250/7 UNHTD if"? ADOLPH Y. S. ALBUM,

OF CHICAGO, ILLINOIS.

BOTTLE STOPPER.

to the accompanying drawings, forming a part of this specification.

My invention relates to bottle stoppers,

' particularly the flat cardboard variety used largely on milk bottles.

One of the objects of the invention is to provide a simple and practical construction of bottle stopper of the class mentioned.

Another object of the invention is. to provide a construction which can be manufactured in large numbers at very low expense.

Another object of the invention is to provide'a pulling tab from the material which is ordinarily wasted in the production of these caps, so that the manufacture will be highly economical, the tab in the present invention not requiring any additional operations for securing or forming it' on the milk bottle cap as is now customary, the tab being formed andproduced at the same time the cap is stamped from the stock.

Another object of the invention is to secure extreme simplicity without sacrificing effectiveness of operation of the present 7 caps.

.i'nvention Figure 5 isa top plan view of the cap with the tab 2folded down upon the stopper.

Referring to the drawings I show in Fig. 1 a bottle stopper comprising a piece of materialsuch as cardboard made into a body part 1 and a tab'2. The body member 1 is preferably circular so as to fit in the top of a milk bottle and the tab 2 is in the form of Specification of Letters Patent. Patented June 6, 1922.

.1921. Serial No. 466,748.

a projection from the body member 1, preferably with sides tangential to the body part and meeting one another preferably at a right angle. This makes a convenient shape of tab to be taken hold of by the fingers to lift the stopper out of a bottle.

As shown in Fig. 2 the stopper may be constructed very effectively and inexpensively by stamping the same from a piece of suitable material 3, as for example, cardboard. In such case the body part 1 of each stopper will be stamped by a circular die or other device and the tab 2 will be formed by the corner of the piece of material which is not cut from the body part 1. In other words the material will be so stamped as to cut out the pieces marked 4.44=, and also the centrai piece marked 5, leaving, however, the four corners 2+2 attached to the otherwise circular body members 1. Thus the stoppers may be very quickly made, requirin buta single stamping operation to make t em in quantity, and "furthermore material will not be wasted and consequently economy will be secured, because the entire width of the material is used for the stoppers and only intermediate portions of material are thrown away.

As shown in Fig. 1, the tab 2 is under-cut at the pointlO so as to provide a shoulder 11 which is arcuate and forms a continuation of the circumferential periphery of the cap. The tab 2 is further bent at the point 12, on a chord of the circle, from the shoulder 11, so as to leave the shoulder 11 unobstructed and to form .tight contact with the walls of the rabbet inthe usual milk bottle, thereby preventing leakage or the ingress of dust into the bottle.

As will be observed from Fig. 5, to bend the tab on. a chordof the circle it is necessary that the bottle cap be split inwardly as indicated at 13.

It will be understood that changes and modifications may be made without departing from the spirit of the invention.

\Vhat I claim is:

1. A bottle cap comprising a flat disk body having an integral tab extending outwardly therefrom, said tab being foldable inwardly toward the body of the cap, the point of fold being within the confines of the body and substantially-spaced from the edge thereof. I

2. A bottle cap comprising a circular body ripheral ed having an integral tab extending from the edge of saidbody, said tab being of less thickness than the circular body of the cap at the point of juncture with the body thereby forming a shoulder at the point of juncture between the body and the tab, said shoulder forming a continuation of the pe- "e of the body.

3. A bottle cap comprising a circular body having'an integral tab extending from the ed e of said body, said tab being of less thickness' than the circular body of the cap at the point of juncture with the body thereby forming a shoulder at the point of juncture between the body and the tab, saw shoulder forming a continuation of the peripheral edge of the body, said tab-being adapted to be bent inwardly on a chord within the confinesof said circular body portion.

4. A bottle cap comprising a fiat circular body havin an outwardly extending interal tab on its peripheral edge, said tab havv mg its sides extending tangentially to the periphery of-said body and meeting at substantially right angles, an arcuate shoulder formed by notching the under side of said cap at the juncture of said tab and said body, said shoulder forming a continuation of the peripheraledge of the cap, for the purposes set torth.

shoulder formed by notching the under side of-the cap at the juncture of said tab and said body, said shoulder forming a continuation of the peripheral edge of the cap, for the purposes set forth.

In witness whereof, I hereunto subscribe my name this 13th day of April, A. D. 1921.

ADOLPH, Y. S. ALBUM. 

